Fill the Tank ?

Level pending

Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?

12 25 40 15

Sandeep Kumar by Sandeep Kumar , 31, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Sanjeet Raria
Oct 9, 2014

Let the capacity of tank be 60 ltr. That means pipe A fills the tank at the rate of 60 20 = 3 \frac{60}{20}=3 ltr per minute & that of B at the rate 60 30 = 2 \frac{60}{30}=2 ltr per minute. When both the pipes are used together, they together fill 2+3=5 ltr water in a minute, thereby filling the tank in 60 5 = 12 \frac{60}{5}=12 minutes.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...